2 piecesSOMMER 4011 4020 4021 4025 4026 4031 4035 APERTO 4021 4025 868MHz garage door remote controlThis remote is a cutting edge,4-channel rolling code remote control for your Sommer system.The hand-held transmitter impresses on the one hand with its compact and handy design and on the other hand with its simple commissioning and operation.With its four channels,you can teach in and control up to four different Sommer drives.It's a high quality,robust replacement which includes protective sliding key cover.This remote pairs with your Sommer receiver unit just like the original.Full,easy programming instructions are included.Comaptible withSOMMER 4026 TX03-868-2SOMMER 4020 TX03-868-4SOMMER 4031SOMMER 4025SOMMER 4011SOMMER 4035APERTO 4025APERTO 40214020V0004025V0004026V0004031V0004011V0004035V002IMPORTANTNot compatible with Sommer 868 MHz SOMloq2 (Pearl,Pearl Twin,Pearl Vibe hand-held transmitters)Include:2x Remote Control2x Battery2x Keychain1x English ManualProgrammingThe remote control is the same function as your original remote.it should programming with original receiver according to your original Manual when you get it.1.Locate the Learn / Code Set button on the motor.This is usually under the lamp cover,or on the back of the motor.2.Press the Learn / Code Set button once,then let go.A light should illuminate.3.Press the desired transmitter button once,and the light will go out.4.Press the remote again the the light will flash on the motor and then go out,signifying the remote has been coded.5.Test the operation of the remote.